CN113323431A - Waterproof energy-saving reconstruction construction method for existing building roof - Google Patents
Waterproof energy-saving reconstruction construction method for existing building roof Download PDFInfo
- Publication number
- CN113323431A CN113323431A CN202110467388.6A CN202110467388A CN113323431A CN 113323431 A CN113323431 A CN 113323431A CN 202110467388 A CN202110467388 A CN 202110467388A CN 113323431 A CN113323431 A CN 113323431A
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 239000010410 layer Substances 0.000 claims abstract description 69
- 238000004321 preservation Methods 0.000 claims abstract description 26
- 239000006260 foam Substances 0.000 claims abstract description 24
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000011083 cement mortar Substances 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 239000011241 protective layer Substances 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000003973 paint Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims abstract description 3
- -1 polyethylene Polymers 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000010426 asphalt Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 229920005549 butyl rubber Polymers 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000011325 microbead Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
- E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0409—Drainage outlets, e.g. gullies
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/064—Gutters
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0281—Repairing or restoring roofing or roof covering
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a waterproof energy-saving reconstruction construction method for an existing building roof, which comprises the following steps: cleaning the existing building roof, and uniformly paving a layer of anti-crack mortar on the roof to form a leveling layer; secondly, laying heat preservation mortar formed by mixing a waterproof agent, cement mortar and heat preservation lightweight aggregate on the leveling layer to form a heat preservation layer, and reserving drainage grooves on the heat preservation layer at two sides of the roof; thirdly, paving a waterproof coiled material on the surface of the heat-insulating layer to form a first waterproof layer; adhering a layer of phenolic foam to the surface of the first waterproof layer; fifthly, paving protective mortar formed by mixing a waterproof agent and cement mortar on the surface of the phenolic foam, and leveling to form a protective layer; and sixthly, coating waterproof paint on the surface of the protective layer to form a second waterproof layer, wherein the second waterproof layer covers the drainage groove. The invention can integrate heat preservation, water resistance, sound insulation and fire prevention into a whole, and improves the effects of environmental protection and energy saving.
Description
Technical Field
The invention relates to the technical field of building waterproof reconstruction, in particular to a construction method for waterproof energy-saving reconstruction of an existing building roof.
Background
In urban construction, renovation work for old houses is an important item. The waterproof and heat-insulating performance of the roof of the old house is deteriorated due to the long time, so that the waterproof and heat-insulating strengthening treatment of the roof of the old house is very important. At present, the mode of laying waterproof roll material on the roof is usually adopted for roof waterproof reconstruction, the waterproof performance of the roof is only improved after reconstruction, the function is single, and the requirement of energy-saving reconstruction is difficult to meet.
Disclosure of Invention
In order to solve the technical problems, the invention provides a construction method for waterproof energy-saving reconstruction of the existing building roof, which has the advantage of improving the waterproof energy-saving performance.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a waterproof energy-saving reconstruction construction method for an existing building roof comprises the following steps:
cleaning the existing building roof, and uniformly paving a layer of anti-crack mortar on the roof to form a leveling layer;
secondly, after the leveling layer is completely dried, laying heat preservation mortar formed by mixing a waterproof agent, cement mortar and heat preservation lightweight aggregate on the leveling layer to form a heat preservation layer, reserving drainage grooves on the heat preservation layer at two sides of the roof, and communicating the drainage grooves with a drainage pipeline;
thirdly, after the heat-insulating layer is completely dried, paving a waterproof coiled material on the surface of the heat-insulating layer to form a first waterproof layer;
adhering a layer of phenolic foam to the surface of the first waterproof layer, wherein the distance between every two phenolic foams is 3-5 cm;
fifthly, paving protective mortar formed by mixing a waterproof agent and cement mortar on the surface of the phenolic foam, and leveling to form a protective layer;
and sixthly, coating waterproof paint on the surface of the protective layer, scraping and brushing the surface to be smooth to form a second waterproof layer, and covering the drainage groove with the second waterproof layer.
As a preferred scheme of the invention, the heat-insulating light aggregate is one or more of fly ash ceramsite, coal gangue ceramsite, vitrified micro-bead or expanded perlite, and the particle size of the light aggregate is 0.3-0.8 mm.
As a preferable scheme of the invention, the mass ratio of the waterproof agent, the cement mortar and the heat-insulating lightweight aggregate in the heat-insulating mortar is 0.05: (0.8-1.2): (1.2-2.5).
As a preferable scheme of the invention, the thickness of the heat-insulating layer is 25-35 mm.
As a preferable scheme of the invention, when the waterproof rolls are laid in the third step, adjacent waterproof rolls are sequentially overlapped, and the overlapping width is 15-25 mm.
In a preferred embodiment of the present invention, in the fourth step, phenolic foam is laid on the non-overlapped area of the waterproof roll.
In a preferred embodiment of the present invention, the thickness of the phenolic foam is 3.5-5.5 mm.
As a preferable scheme of the invention, the mass ratio of the waterproof agent to the cement mortar in the protection mortar is 0.03: (1.5-3).
As a preferable scheme of the present invention, the waterproof roll is one of a polyethylene polypropylene waterproof roll, a polyethylene polyester waterproof roll and a polymer modified asphalt waterproof roll.
In a preferred embodiment of the present invention, the waterproof coating is a butyl rubber waterproof coating or an acrylic high-elasticity waterproof coating.
In conclusion, the invention has the following beneficial effects:
the invention provides a waterproof energy-saving reconstruction construction method of the existing building roof, which provides a horizontal interface for the laying of a subsequent waterproof heat-insulation structure by arranging a leveling layer, reduces the influence of roof sundries on the reconstruction process, forms a better heat-insulation waterproof function by waterproof agents and heat-insulation light aggregates by laying a heat-insulation layer, forms a first waterproof layer by laying waterproof coiled materials, forms an integral waterproof layer on the whole roof, further improves the heat-insulation performance of the roof by attaching phenolic foam, has sound-insulation fireproof performance, can tightly combine the protective layer and the phenolic foam after filling gaps formed among the phenolic foam to improve the tightness of the whole, forms a second waterproof layer by spraying waterproof paint to form an integral waterproof structure, and can drain accumulated water on the roof in time through a drainage groove, it can collect heat preservation, waterproof, give sound insulation, fire prevention and an organic whole, improves environmental protection and energy saving effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a roof waterproof structure formed after the construction method of the embodiment of the invention is completed.
The corresponding part names indicated by the numbers and letters in the drawings:
1. a roof; 2. leveling layer; 3. a heat-insulating layer; 4. a first waterproof layer; 5. phenolic foam; 6. a protective layer; 7. a second waterproof layer; 8. a water drainage groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
A waterproof and energy-saving reconstruction construction method for an existing building roof is shown in figure 1 and comprises the following steps:
step one, after an existing building roof 1 is cleaned up, a layer of anti-crack mortar is uniformly laid on the roof 1 to form a leveling layer 2, wherein the thickness of the leveling layer 2 is 15-20mm, and the leveling of the roof 1 to be in a horizontal state is taken as the standard.
Step two, after the leveling layer 2 is completely dried, laying heat preservation mortar formed by mixing a waterproof agent, cement mortar and heat preservation lightweight aggregate on the leveling layer 2 to form a heat preservation layer 3, reserving water drainage grooves 8 on the heat preservation layer 3 and positioned on two sides of the roof 1, wherein the water drainage grooves 8 are communicated with water drainage pipes, the heat preservation lightweight aggregate is one or more of fly ash ceramsite, coal gangue ceramsite, vitrified micro-beads or expanded perlite, the particle size of the lightweight aggregate is 0.3-0.8mm, the stacking density is less than 130 Kg/per cubic meter, the water absorption is less than 60%, the heat conductivity coefficient is less than 0.050 w/m.k, and the mass ratio of the waterproof agent, the cement mortar and the heat preservation lightweight aggregate in the heat preservation mortar is 0.05: (0.8-1.2): (1.2-2.5), in the embodiment, the mass ratio of the waterproof agent, the cement mortar and the heat preservation lightweight aggregate is 0.05:1:2.3, and the thickness of the heat preservation layer 3 is 25-35 mm.
Step three, after the heat preservation layer 3 is completely dried, paving a waterproof coiled material on the surface of the heat preservation layer 3 to form a first waterproof layer 4, wherein the waterproof coiled material is one of a polyethylene polypropylene waterproof coiled material, a polyethylene polyester waterproof coiled material and a polymer modified asphalt waterproof coiled material, the waterproof coiled material is the polymer modified asphalt waterproof coiled material in the embodiment, when the waterproof coiled material is paved, adjacent waterproof coiled materials are sequentially lapped, and the lapping width is 15-25 mm.
And fourthly, adhering a layer of phenolic foam 5 on the surface of the first waterproof layer 4, wherein the distance between every two phenolic foams 5 is 3-5cm, the thickness of the phenolic foam 5 is 3.5-5.5mm, and the phenolic foam 5 is paved on the non-lap-joint area of the waterproof coiled material.
Fifthly, paving protection mortar formed by mixing the waterproof agent and the cement mortar on the surface of the phenolic foam 5, leveling and then forming a protection layer 6, wherein the mass ratio of the waterproof agent to the cement mortar in the protection mortar is 0.03: (1.5-3), in the embodiment, the mass ratio of the waterproof agent to the cement mortar is 0.03: 1.8.
and sixthly, coating waterproof paint on the surface of the protective layer 6, scraping and brushing the surface to be smooth to form a second waterproof layer 7, wherein the second waterproof layer 7 covers the drainage groove 8, the waterproof paint is butyl rubber waterproof paint or acrylic acid high-elasticity waterproof paint, and the acrylic acid high-elasticity waterproof paint is selected in the embodiment.
The invention provides a waterproof energy-saving reconstruction construction method of an existing building roof 1, a leveling layer 2 is arranged to provide a horizontal interface for the laying of a subsequent waterproof heat-insulation structure, the influence of roof sundries on the reconstruction process is reduced, a heat-insulation layer 3 is laid to form a better heat-insulation waterproof function by waterproof agents and heat-insulation light aggregates, a waterproof coiled material is laid to form a first waterproof layer 4, the whole roof 1 forms an integral waterproof layer, the heat-insulation performance of the roof 1 is further improved by attaching phenolic foam 5, the roof has sound-insulation fireproof performance, after a gap formed between the phenolic foam 5 is filled in a protective layer 6, the protective layer 6 and the phenolic foam 5 can be tightly combined to improve the integral tightness, a second waterproof layer 7 is formed by spraying waterproof paint to form an integral waterproof structure, and meanwhile, accumulated water on the roof can be timely discharged through a drainage groove 8, it can collect heat preservation, waterproof, give sound insulation, fire prevention and an organic whole, improves environmental protection and energy saving effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A waterproof energy-saving reconstruction construction method for an existing building roof is characterized by comprising the following steps:
cleaning the existing building roof, and uniformly paving a layer of anti-crack mortar on the roof to form a leveling layer;
secondly, after the leveling layer is completely dried, laying heat preservation mortar formed by mixing a waterproof agent, cement mortar and heat preservation lightweight aggregate on the leveling layer to form a heat preservation layer, reserving drainage grooves on the heat preservation layer at two sides of the roof, and communicating the drainage grooves with a drainage pipeline;
thirdly, after the heat-insulating layer is completely dried, paving a waterproof coiled material on the surface of the heat-insulating layer to form a first waterproof layer;
adhering a layer of phenolic foam to the surface of the first waterproof layer, wherein the distance between every two phenolic foams is 3-5 cm;
fifthly, paving protective mortar formed by mixing a waterproof agent and cement mortar on the surface of the phenolic foam, and leveling to form a protective layer;
and sixthly, coating waterproof paint on the surface of the protective layer, scraping and brushing the surface to be smooth to form a second waterproof layer, and covering the drainage groove with the second waterproof layer.
2. The existing building roof waterproof energy-saving reconstruction construction method according to claim 1, wherein the heat-insulating light aggregate is one or more of fly ash ceramsite, coal gangue ceramsite, vitrified micro-beads or expanded perlite, and the particle size of the light aggregate is 0.3-0.8 mm.
3. The existing building roof waterproof energy-saving reconstruction construction method according to claim 2, wherein the mass ratio of the waterproof agent, the cement mortar and the heat-insulating lightweight aggregate in the heat-insulating mortar is 0.05: (0.8-1.2): (1.2-2.5).
4. The existing building roof waterproof energy-saving reconstruction construction method according to claim 2 or 3, wherein the thickness of the heat insulation layer is 25-35 mm.
5. The existing building roof waterproof energy-saving reconstruction construction method according to claim 1, wherein when the waterproof rolls are laid in the third step, adjacent waterproof rolls are sequentially overlapped, and the overlapping width is 15-25 mm.
6. The existing building roof waterproof energy-saving reconstruction construction method according to the claim 5, wherein in the fourth step, phenolic foam is laid on the non-overlapped area of the waterproof coiled material.
7. The existing building roof waterproof energy-saving reconstruction construction method according to claim 1 or 6, wherein the thickness of the phenolic foam is 3.5-5.5 mm.
8. The existing building roof waterproof energy-saving reconstruction construction method according to claim 1, wherein the mass ratio of the waterproof agent to the cement mortar in the protection mortar is 0.03: (1.5-3).
9. The existing building roof waterproof energy-saving reconstruction construction method according to claim 1, wherein the waterproof roll is one of a polyethylene polypropylene waterproof roll, a polyethylene polyester waterproof roll and a polymer modified asphalt waterproof roll.
10. The existing building roof waterproof energy-saving reconstruction construction method according to claim 1, wherein the waterproof coating is a butyl rubber waterproof coating or an acrylic acid high-elasticity waterproof coating.
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CN202110467388.6A CN113323431A (en) | 2021-04-28 | 2021-04-28 | Waterproof energy-saving reconstruction construction method for existing building roof |
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CN202110467388.6A CN113323431A (en) | 2021-04-28 | 2021-04-28 | Waterproof energy-saving reconstruction construction method for existing building roof |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115405051A (en) * | 2022-09-21 | 2022-11-29 | 福建清禹工程管理有限公司 | Roof waterproof structure and construction method thereof |
CN116838040A (en) * | 2023-06-30 | 2023-10-03 | 中交建筑集团有限公司 | Roof waterproof structure and paving method |
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CN201343833Y (en) * | 2009-01-06 | 2009-11-11 | 岳希茹 | Heat-preserving and waterproof integrated heat-insulating roof |
CN202706351U (en) * | 2012-09-07 | 2013-01-30 | 清远电力设计有限公司 | Heat insulation waterproof roof |
CN207776290U (en) * | 2017-12-05 | 2018-08-28 | 北京东方雨虹防水技术股份有限公司 | A kind of horizontal type water for flat roof waterproof system falls mouth structure |
CN109184090A (en) * | 2018-09-21 | 2019-01-11 | 北京朗坤防水材料有限公司 | A kind of waterproof construction method at the top of house |
CN209277413U (en) * | 2018-12-19 | 2019-08-20 | 富莱克斯(天津)科技有限公司 | A kind of water-proof insulating roof system |
CN111827587A (en) * | 2020-06-01 | 2020-10-27 | 上海克络蒂材料科技发展有限公司 | Thermal insulation and waterproof construction method for roof with ultralow energy consumption |
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2021
- 2021-04-28 CN CN202110467388.6A patent/CN113323431A/en active Pending
Patent Citations (6)
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CN201343833Y (en) * | 2009-01-06 | 2009-11-11 | 岳希茹 | Heat-preserving and waterproof integrated heat-insulating roof |
CN202706351U (en) * | 2012-09-07 | 2013-01-30 | 清远电力设计有限公司 | Heat insulation waterproof roof |
CN207776290U (en) * | 2017-12-05 | 2018-08-28 | 北京东方雨虹防水技术股份有限公司 | A kind of horizontal type water for flat roof waterproof system falls mouth structure |
CN109184090A (en) * | 2018-09-21 | 2019-01-11 | 北京朗坤防水材料有限公司 | A kind of waterproof construction method at the top of house |
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CN111827587A (en) * | 2020-06-01 | 2020-10-27 | 上海克络蒂材料科技发展有限公司 | Thermal insulation and waterproof construction method for roof with ultralow energy consumption |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115405051A (en) * | 2022-09-21 | 2022-11-29 | 福建清禹工程管理有限公司 | Roof waterproof structure and construction method thereof |
CN115405051B (en) * | 2022-09-21 | 2023-11-17 | 福建清禹工程管理有限公司 | Roof waterproof structure and construction method thereof |
CN116838040A (en) * | 2023-06-30 | 2023-10-03 | 中交建筑集团有限公司 | Roof waterproof structure and paving method |
CN116838040B (en) * | 2023-06-30 | 2024-01-09 | 中交建筑集团有限公司 | Roof waterproof structure and paving method |
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Application publication date: 20210831 |